Which are two kinds of echinoderms that use tube feet for movement? sea cucumber and brittle star
brittle star and sea star
sea star and sea urchin
sea urchin and brittle star

During the civil war, which leader often had fewer troops available for battle? george mcclellan robert e. lee jefferson davis winfield scott

Which of the following could affect the human population? a hurricane makes landfall on an uninhabited island.a deadly virus emerges that can pass from human to human.a civil war breaks out in italy.a solar eclipse occurs.

Which of the following was not an effect of westward expansion? a. native american tribes suffered confinement on reservations. b. native americans learned new techniques of irrigation. c. many native americans died from the spread of disease. d. natural resources were depleted from misuse by white settlers.